scholarly journals Theoretical Evidence for Equivalence between the Ground States of the Strong Coupling BCS Hamiltonian and the Antiferromagnetic Heisenberg Model

2005 ◽  
Vol 95 (2) ◽  
Author(s):  
K. Park
Keyword(s):  
Strong Coupling ◽  
Heisenberg Model ◽  
Ground States ◽  
Antiferromagnetic Heisenberg Model ◽  
Theoretical Evidence ◽  
Bcs Hamiltonian

scholarly journals Critical behavior of the antiferromagnetic Heisenberg model on a stacked triangular lattice

1994 ◽  
Vol 4 (2) ◽  
pp. 181-186 ◽  
Author(s):  
T. Bhattacharya ◽  
A. Billoire ◽  
R. Lacaze ◽  
Th. Jolicoeur
Keyword(s):  
Critical Behavior ◽  
Triangular Lattice ◽  
Heisenberg Model ◽  
Antiferromagnetic Heisenberg Model

A renormalization group study of the 2D antiferromagnetic Heisenberg model

1993 ◽  
Vol 73 (10) ◽  
pp. 6102-6104 ◽  
Author(s):  
H. Q. Lin ◽  
D. K. Campbell ◽  
C. Y. Pan
Keyword(s):  
Renormalization Group ◽  
Heisenberg Model ◽  
Antiferromagnetic Heisenberg Model

EFFECTIVE THEORY FOR HIGH-TEMPERATURE SUPERCONDUCTIVITY BASED ON DUALITY AT S = 1/2 ANTIFERROMAGNETIC HEISENBERG MODEL

2005 ◽  
Vol 19 (12) ◽  
pp. 571-579 ◽  
Author(s):  
TAKAO MORINARI
Keyword(s):  
High Temperature ◽  
Heisenberg Model ◽  
High Temperature Superconductivity ◽  
High Temperature Superconductors ◽  
Parent Compound ◽  
High Energy ◽  
Field Application ◽  
Effective Theory ◽  
Dirac Fermions ◽  
Antiferromagnetic Heisenberg Model

It is argued that in two-dimension duality connects the CP1 representation of the S = 1/2 antiferromagnetic Heisenberg model with the Schwinger model in which Dirac fermions are interact via a U(1) gauge field. Application of this duality to underdoped high-temperature superconductors suggests that the high-energy fermionic excitation at the Mott insulating parent compound turns out to be a low-lying excitation in the spin disordered regime. A picture for high-temperature superconductivity is proposed.

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